Schubertellidae

Schematic diagram of Codonofusiella, from here (see link for legend).

Belongs within: Fusulinoida.

The Schubertellidae are a group of minute fusulinids known from the Upper Carboniferous and Permian (Loeblich & Tappan 1964).

Characters (from Loeblich & Tappan 1964, as Schubertellinae): Shell minute, elongate-fusiform, ellipsoidal or irregular in shape, first few volutions coiled at large angle to outer ones; spirotheca composed of (1) tectum with upper and lower tectoria or (2) tectum with diaphanotheca and tectoria, or (3) tectum with lower layer only, or (4) consisting of single thin layer; septa plane in primitive forms, fluted in end zones of more advanced forms, and fluted throughout length of shell in some advanced members; tunnel singular; chomata small or distinct.

<==Schubertellidae [Schubertellinae, Schubertellinidae, Schubertellininae]
    |--Neoschubertella Saurin 1962HW93
    |--Paradunbarula Skinner 1969HW93
    |--Ziguiella Lin 1980HW93
    |--Mesoschubertella Kanuma & Sakagami 1957LT64
    |    `--*M. thompsoni Sakagami in Kanuma & Sakagami 1957LT64
    |--Depratella Ozawa 1928R-CB96
    |    `--*D. giraudi (Deprat 1915)R-CB96 [=Neofusulinella giraudiR-CB96, Schubertella giraudiLT64]
    |--Kwantoella Sakagami & Omata 1957R-CB96
    |    `--*K. fujimotoi Sajagami & Omata 1957LT64
    |--Toriyamaia Kanmera 1956R-CB96
    |    `--*T. laxiseptata Kanmera 1956LT64
    |--Nanlingella Rui & Sheng 1981K04
    |    |--*N. meridionalis Rui & Sheng 1981 [=Palaeofusulina (*Nanlingella) meridionalis]R-CB96
    |    `--N. simplexK04
    |--Paraboultonia Skinner & Wilde 1954 [incl. Tavajzites Tumanskaya 1953]LT64
    |    |--*P. splendens Skinner & Wilde 1954LT64
    |    `--P. delicata (Colani 1924) [=Fusulina pseudoprisca var. delicata, *Tavajzites delicata]LT64
    |--Eoschubertella Thompson 1937LT64
    |    |--*E. lata (Lee & Chen 1930) [=Schubertella lata]R-CB96
    |    `--E. gallowayiLT64
    |--Fusiella Lee & Chen 1930R-CB96
    |    |--*F. typica Lee & Chen 1930R-CB96
    |    `--F. primaevaC40
    |--Schubertella Staff & Wedekind 1910LT64
    |    |--*S. transitoria Staff & Wedekind 1910LT64
    |    |--S. kingiLT64
    |    `--S. mullerriedi Thompson & Miller 1944LT64
    `--Neofusulinella Deprat 1912R-CB96
         |--*N. praecursor Deprat 1913LT64
         |--N. chaoiG31
         |--N. lantenoisi Deprat 1913LT64
         `--N. schwagerinoides Deprat 1913LT64

*Type species of generic name indicated

References

[C40] Cushman, J. A. 1940. Foraminifera: Their classification and economic use 3rd ed. Harvard University Press: Cambridge (Massachusetts).

[G31] Grabau, A. W. 1931. The Permian of Mongolia: A report on the Permian fauna of the Jisu Honguer limestone of Mongolia and its relations to the Permian of other parts of the world. American Museum of Natural History: New York.

[HW93] Hart, M. B., & C. L. Williams. 1993. Protozoa. In: Benton, M. J. (ed.) The Fossil Record 2 pp. 43–70. Chapman & Hall: London.

[K04] Kobayashi, F. 2004. Late Permian foraminifers from the Limestone Block in the Southern Chichibu Terrane of west Shikoku, SW Japan. Journal of Paleontology 78 (1): 62–70.

[LT64] Loeblich, A. R., Jr & H. Tappan. 1964. Sarcodina: chiefly “thecamoebians” and Foraminiferida. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt C. Protista 2 vol. 1. The Geological Society of America and The University of Kansas Press.

[R-CB96] Rauzer-Chernousova, D. M., F. R. Bensh, M. V. Vdovenko, N. B. Gibshman, E. Y. Leven, O. A. Lipina, E. A. Reitlinger, M. N. Solovieva & I. O. Chedija. 1996. Spravočnik po Sistematike Foraminifer Paleozoâ (Èndotiroidy, Fuzulinoidy). Rossijskaâ Akademiâ Nauk, Geologičeskij Institut, Moskva “Nauka”.

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